kern.maxpipekva exceeded, please see tuning(7)

[Jason Henson]

On 03/13/05 15:44:32, John DeStefano wrote:
> I have seen a mention or two of this error on the lists before,
> including this link to the "current" list I pulled up from Google:
> http://lists.freebsd.org/pipermail/freebsd-current/2004-January/019150.html
> 
> In my case, the errors began after my exploratory two-year-old found
> the shiny 'reset' button and could not resist its powers.  I'm also
> getting HDD error messages on boot, 'fsck -y' shows all the file
> systems as read-only and returns errors on one of them, and I can no
> longer SSH into my system (due to, I assume, too many open file
> handles), or even get a command in on my console without an error
> popping in..
> 
> The solution does not seem clear cut to me, and it seems the error
> message itself does not provide valid (or, at least, sufficient)
> information.
> 
> Could someone please help, or point me in the right direction?
> 
> Thanks, as always,
> John
> _______________________________________________

FreeBSD is very robust with power failures, but that was a reset  
button.  Do you have acpi on?  When I hit my power button every once in  
a while my system shuts down properly.  Try booting into single user  
mode and do a manual mount and fsck.

And just to help you out:

$ sysctl -ad | grep pipekva
kern.ipc.maxpipekva: Pipe KVA limit
kern.ipc.pipekva: Pipe KVA usage
$ sysctl -a | grep pipekva
kern.ipc.maxpipekva: 8634368
kern.ipc.pipekva: 344064

$ uname -a
FreeBSD BARTON 5.4-PRERELEASE FreeBSD 5.4-PRERELEASE #5: Mon Mar  7  
20:51:09 EST 2005     jason at BARTON:/usr/obj/usr/src/sys/NINAMORI  i386
$